JPS5933001A - Preforming installation for bloom - Google Patents

Abstract

PURPOSE:To provide a titled installation which preforms efficiently and surely to preform a bloom by constituting so that the bloom under movement is stopped in a prescribed position by means of a stopper operating cooperatively with a position detector and is pressed after the central position is assured by side guides. CONSTITUTION:A bloom (a) which is discharged from a holding furnace, and is conveyed with table rolls 6 with the narrow width sides in the cross section thereof positioned at top and bottom is stopped in a prescribed position by means of a stopper 13 operating cooperatively with a position detector 12, and the center of the bloom (a) is positioned by means of side guides 10 which are actuated by cylinders 11. A vertical press 1 is then operated and the table rolls 6 are lowered by cylinders 9 to preform the forward end part of the bloom (a). The bloom (a) is similarly positioned by means of a stopper 14 and the guides 10 and after the rear end part is preformed, the bloom (a) is inverted 90 deg. by an inverting machine 18 and is removed of torch slag with a slag remover 15. The bloom is then transferred to a blooming mill in the next stage.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to bloom preforming equipment. Blooms of rectangular cross section manufactured by continuous casting. ,
The next process is a blooming mill where it is rolled into long pieces with the required cross section. By the way, in the above-mentioned rolling process, the influence of the rolling process by the horizontal rolls is difficult to penetrate into the inside of the rolled material, and the degree of restraint of processing deformation is small at the ends of the material. Four parts occur. This fish tail portion is cut off and removed after rolling, resulting in a bottoming out of the product yield.

By the way, as a means to prevent the above-mentioned fish tail from occurring, a method has been proposed in which the material is press-worked so that the width of the material is reduced at the leading and trailing ends, and then the material is fed to a blooming mill. Research has been conducted on specific pressing means, their arrangement, etc., and several types of techniques have been published. However, these conventional techniques require additional equipment, which is an essential element for performing so-called preforming that corresponds to the bloom preforming press installed in the transfer line from the soaking furnace to the blooming mill. No technical proposals have been made regarding the device.

The present invention was conceived in view of the above-mentioned circumstances, and a drive table roller is arranged on the input/output side of a press installed in a bloom transfer line, and the processing end of the front and rear ends of the bloom is moved on the table roller as described above. By installing a position detector and stopper to accommodate the press, as well as an operating side guide or reversing machine to determine the center position of the bloom, it is possible to achieve reliable preforming. An explanation will be given based on an embodiment K shown in FIG.

Figures 1 and 2 show a rigid preforming press (1) having molds facing each other above and below the line on a transfer line (A) between a soaking furnace and a blooming mill (not shown). ) is an embodiment of the bloom preforming equipment of the present invention when installed in
The lower mold (4) facing the upper mold (3) which is fixed to the elevating ram (2) of the press and which can move forward and backward in the vertical direction has a height that is equal to or slightly higher than the transfer line of the bloom (a). It is located at a low position and is fixed on the base (5). (0) is a table roller installed on the entrance side of the press (1), (7) is a table roller installed on the exit side of the press (1),
Both table rollers t(6) and (7) prevent bending deformation of the bloom (a) when pressing the bloom (a) extracted from the soaking furnace and transferred with the narrow width plane up and down in the cross section. / of the stroke of the press (1) to prevent
(3) in the figure is the cylinder for lifting and lowering. (9) is a guide.

(10) are side guides arranged in parallel on both sides of the above-mentioned table rollers (6) (γ), and each cylinder (
J1) to move forward and backward to determine the center position of the bloom (a). Note that (12) in the figure is a position detector, which detects the feeding position of the bloom (a) and sends the signal to the table roller (6) to drive it, or furthermore, the table roller (6). ) to stop the bloom (a) at a predetermined position on the stopper (1).
It acts to perform the operation of 3). In addition, the stopper (18) is released, the exit roller table (γ) is driven, and the exit roller table (7) is moved from the entrance roller table (6) to the exit roller table (7). The operation of the stopper (14) which is in charge of stopping the bloom (&), and the operation of the side guide (10) which establishes the position or center of the bloom (&) on both roller tables (6) (7), etc. The system may be designed so that it is performed according to a preset automatic operation timing, and necessary manual operation commands are performed from a remotely located transmitting/receiving room (not shown).

There is also a so-called slag removal device (15) that removes the torch nozzle attached to the bloom after or before press molding.
and an inversion machine (18
) is placed at an appropriate position on the line at the rear of the press exit side.

When press-forming the front and rear ends of the bloom into a narrow width using the preforming equipment of the present invention equipped with a rigid preforming press as described above, it is necessary to press-form the front and rear ends of the bloom with narrow widths in the cross section from the soaking furnace (not shown). The bloom (a) that has been extracted and conveyed in this state is conveyed to the table roller (6) on the press entrance side by the signal from the position detector (12), and the center is determined by the operation of the side guide (10), and the bloom (a) is moved to the predetermined position of the press. Roll the table roller up to (
6) is conveyed while decelerating and stopped at the stopper (13). Next, the tip of the bloom (a) is press-formed. During pressing, the table roller (6) descends in sync with the 1/2 stroke of the press, and then rises by 1/2 stroke after pressing. This action allows Bloom (a) to respond to the press in a stable posture.

Bloom (a) Table roller on the press exit side (
7) When the rear end is press-formed after being transferred upward, the molding position of the rear end is determined by the stopper (14) in the same manner as above, the center is determined by the side guide (10), and the table roller ( 7) is lowered by 1/2 stroke and press forming is performed. The bloom (A), whose front and rear ends are press-formed in this way, is turned over 90 degrees by a reversing machine (E) so that the wide side is up and down in the cross section, and then it is turned over to the bottom surface of the bloom by a slag removal device (15). Adhering slag is removed and the material is supplied to a blooming mill (not shown).

Figure 3 shows the present invention in which a preforming press (1) with a press mold facing perpendicularly to the line is interposed in a transfer line between a soaking furnace and a blooming mill (not shown). This is an embodiment of the bloom preforming equipment, which includes a movable mold, (3)', which is fixed to the telescopic ram (2)' of the press (1)' and can move forward and backward in a direction perpendicular to the line, and the mold. Fixed molds (4)' are placed opposite to (3)', and transfer lines (arranged on both sides of the chrysanthemum) are provided. (16) is placed on the entrance side of the horizontal press (1)'. The table roller (16) is provided with a forward and reverse reversible table roller (16).
) are provided with stoppers (21, 22) for stopping the bloom (a) at a predetermined position in conjunction with the position detectors (19, 20).

16)' is arranged on the exit side of the press (11') and is a correction reversal town? The table roller is equipped with a reversing machine (18
) and a position detector (20) to determine the center position of the bloom (a). A side guide (17) is provided that can be moved forward and backward by a cylinder (11) that can determine the center position of the bloom (a).

Additionally, a slag removal device is provided as an additional equipment midway along the table roller on the exit side.

When press-forming the leading and trailing ends of the bloom into a narrow width using the preforming equipment of the present invention having a horizontal preforming press as described above, it is necessary to press-form the front and rear ends of the bloom into narrow widths using a soaking furnace (not shown). Bloom (a), which has been extracted and transported in a state of
After detection at 0), the rotation of the table roller (16)' stops and the bloom (a) stops at a predetermined position.The bloom (a) is then reversed by 90 degrees by the reversing machine (18), so that the narrow side is the upper and lower sides in the cross section. From this state, the wide side is placed up and down, and the side guides (17) align the center, and the table roller (16) is decelerated and reversed to a predetermined press position, and at the predetermined position, the stopper (21) After stopping, the rear end of bloom (a) is first press-formed. Next, the table roller (16) is further reversed, stopped at a stopper (22) at a predetermined position, and the front end of the bloom (a) is preformed. The bloom (a) press-formed in this way was transferred to the press exit side by the advancement of the table roller (16), and the slag adhering to the lower surface behind the tip of the bloom (a) was removed by a slag removal device. It is then supplied to a blooming mill (not shown).

In the above embodiment, an example was shown in which the reversing machine (18) was provided on the drive table roller (16)' side, but the invention is not limited to this, and the reversing machine (18) was provided on the drive table roller (16)' side.
6), the bloom (a) may be inverted in advance, and then transported to the press (1).

As described above, the present invention includes a preforming press interposed in a transfer line connecting a heating furnace and a blooming mill, and a driving table roller and a position detector/stopper operating side for making the bloom correspond to the press. It is equipped with a guide, a reversing machine, etc., and thereby preforming the bloom can be accomplished efficiently and reliably.

[Brief explanation of drawings]

FIG. 1 is a plan view showing an embodiment in which a road press is provided, FIG. 2 is a side view thereof, and FIG. 3 is a plan view showing an embodiment in which a horizontal press is provided. (1) is a rigid press, (6) (7) (16) (16)'
are table rollers, (10) (17)' are side guides, (1)' are horizontal presses, (12) (19) (20)
is a position detector, (13) Uc+IIIlm mo Sakaki is a stopper.

Claims (2)

[Claims] (1) A rigid preforming press having a die that faces upwardly and downwardly relative to the bloom transfer line between the soaking furnace and the blooming mill and that can move forward and backward, and the press. On the entry/exit side of the bloom, there is a rotatable and movable table roller equipped with a detector for detecting the position of the bloom and a stopper that stops the bloom at a predetermined position in conjunction with the detector. This bloom preforming equipment is characterized by having a side guide capable of centering, and furthermore a reversing machine and a slag removal device arranged at appropriate positions on the rear line of the exit side of the press. (2) A horizontal preforming press that has a mold that can move forward and backward in a direction perpendicular to the line in the middle of the bloom transfer line between the soaking furnace and the blooming mill, and a horizontal preforming press that can move in and out of the press. On the side, there is a rotatable table roller equipped with a detector that detects the position of the bloom and a stopper that stops the bloom at a predetermined position in conjunction with the detector, and a side that can center the bloom on the table roller. This bloom preforming equipment is characterized by having a guide, and furthermore, a reversing machine and a slag removal device arranged at appropriate positions on either the input/output side of the press line.